What does the following safety sign mean?
💡 Hint
Road-shape caution signs differ in meaning by how the two side lines move (Enforcement Rule, Appendix 6). Check whether both lines come inward together or only one line bends, and compare it with the bridge, median-strip and bicycle pictures.
Answer: ③
Explanation
A picture where both edge lines move inward together is a caution sign warning that the road narrows (Enforcement Rule, Appendix 6, No. 118). On roads without lane divisions or with three lanes or fewer, it is placed on the right side of the road 50-200 meters before the narrowing. Slow down and watch your distance from vehicles beside you or coming toward you. Bridge, median-begins, and bicycle signs have different pictures.
Legal basis: 도로교통법 시행규칙 별표6 118 도로폭이좁아짐표지